# Practice These Principles by Ray A. — resale value

Source: JunkPal price guide — https://junkpal.ai/products/practice-these-principles-ray-a-ol25480801w

**Practice These Principles by Ray A.** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/practice-these-principles-ray-a-ol25480801w

Values are medians of real closed eBay sales, updated 2026-06-19. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DPractice%2520These%2520Principles%2520Ray%2520A%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DPractice%2520These%2520Principles%2520Ray%2520A%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 9781737041023 |
| Brand | Ray A. |
| Published | 2021 |
| Publisher | Practice These Principles Publishers |
| Pages | 380 |
| Editions | 4 |
| Category | Self-help |

## Practice These Principles resale value

**Practice These Principles** by Ray A. (2021). Across 4 editions. Used-book value depends heavily on edition (first printing vs. reprint), condition, dust jacket, and whether it's signed. First editions and out-of-print titles command the biggest premiums.

### What drives the price

First editions/first printings, intact dust jackets, signatures, and unmarked pages are the top value drivers. Book-club editions and later reprints are worth far less.

## FAQ

**Is this a recent edition of the book?**

Yes, this edition of "Practice These Principles" was published in 2021.

**How many pages are in this book?**

The book contains 380 pages.

**What is the ISBN for this specific edition?**

The ISBN for this 4th edition is 9781737041023.

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Full price guide: https://junkpal.ai/products/practice-these-principles-ray-a-ol25480801w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-06-19, based on real sold listings (junkpal.ai)"